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vsl-lex.C
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// This file was modified for -*- C++ -*-
// using $RCSfile: lextoC.flex,v $ $Revision: 1.5 $
/* A lexical scanner generated by flex */
/* Scanner skeleton version:
* $Header: /home/daffy/u0/vern/flex/RCS/flex.skl,v 2.91 96/09/10 16:58:48 vern Exp $
*/
#define FLEX_SCANNER
#define YY_FLEX_MAJOR_VERSION 2
#define YY_FLEX_MINOR_VERSION 5
#include <stdio.h>
/* cfront 1.2 defines "c_plusplus" instead of "__cplusplus" */
#ifdef c_plusplus
#ifndef __cplusplus
#define __cplusplus
#endif
#endif
#ifdef __cplusplus
#include <stdlib.h>
#include <unistd.h>
/* Use prototypes in function declarations. */
#define YY_USE_PROTOS
/* The "const" storage-class-modifier is valid. */
#define YY_USE_CONST
#else /* ! __cplusplus */
#if __STDC__
#define YY_USE_PROTOS
#define YY_USE_CONST
#endif /* __STDC__ */
#endif /* ! __cplusplus */
#ifdef __TURBOC__
#pragma warn -rch
#pragma warn -use
#include <io.h>
#include <stdlib.h>
#define YY_USE_CONST
#define YY_USE_PROTOS
#endif
#ifdef YY_USE_CONST
#define vslconst const
#else
#define vslconst
#endif
#ifdef YY_USE_PROTOS
#define YY_PROTO(proto) proto
#else
#define YY_PROTO(proto) ()
#endif
/* Returned upon end-of-file. */
#define YY_NULL 0
/* Promotes a possibly negative, possibly signed char to an unsigned
* integer for use as an array index. If the signed char is negative,
* we want to instead treat it as an 8-bit unsigned char, hence the
* double cast.
*/
#define YY_SC_TO_UI(c) ((unsigned int) (unsigned char) c)
/* Enter a start condition. This macro really ought to take a parameter,
* but we do it the disgusting crufty way forced on us by the ()-less
* definition of BEGIN.
*/
#define BEGIN vsl_start = 1 + 2 *
/* Translate the current start state into a value that can be later handed
* to BEGIN to return to the state. The YYSTATE alias is for lex
* compatibility.
*/
#define YY_START ((vsl_start - 1) / 2)
#define YYSTATE YY_START
/* Action number for EOF rule of a given start state. */
#define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1)
/* Special action meaning "start processing a new file". */
#define YY_NEW_FILE vslrestart( vslin )
#define YY_END_OF_BUFFER_CHAR 0
/* Size of default input buffer. */
#define YY_BUF_SIZE 16384
typedef struct vsl_buffer_state *YY_BUFFER_STATE;
// extern int vslleng;
// extern FILE *vslin, *vslout;
#define EOB_ACT_CONTINUE_SCAN 0
#define EOB_ACT_END_OF_FILE 1
#define EOB_ACT_LAST_MATCH 2
/* The funky do-while in the following #define is used to turn the definition
* int a single C statement (which needs a semi-colon terminator). This
* avoids problems with code like:
*
* if ( condition_holds )
* vslless( 5 );
* else
* do_something_else();
*
* Prior to using the do-while the compiler would get upset at the
* "else" because it interpreted the "if" statement as being all
* done when it reached the ';' after the vslless() call.
*/
/* Return all but the first 'n' matched characters back to the input stream. */
#define vslless(n) \
do \
{ \
/* Undo effects of setting up vsltext. */ \
*vsl_cp = vsl_hold_char; \
YY_RESTORE_YY_MORE_OFFSET \
vsl_c_buf_p = vsl_cp = vsl_bp + n - YY_MORE_ADJ; \
YY_DO_BEFORE_ACTION; /* set up vsltext again */ \
} \
while ( 0 )
#define unput(c) vslunput( c, vsltext_ptr )
/* The following is because we cannot portably get our hands on size_t
* (without autoconf's help, which isn't available because we want
* flex-generated scanners to compile on their own).
*/
typedef unsigned int vsl_size_t;
struct vsl_buffer_state
{
FILE *vsl_input_file;
char *vsl_ch_buf; /* input buffer */
char *vsl_buf_pos; /* current position in input buffer */
/* Size of input buffer in bytes, not including room for EOB
* characters.
*/
vsl_size_t vsl_buf_size;
/* Number of characters read into vsl_ch_buf, not including EOB
* characters.
*/
int vsl_n_chars;
/* Whether we "own" the buffer - i.e., we know we created it,
* and can realloc() it to grow it, and should free() it to
* delete it.
*/
int vsl_is_our_buffer;
/* Whether this is an "interactive" input source; if so, and
* if we're using stdio for input, then we want to use getc()
* instead of fread(), to make sure we stop fetching input after
* each newline.
*/
int vsl_is_interactive;
/* Whether we're considered to be at the beginning of a line.
* If so, '^' rules will be active on the next match, otherwise
* not.
*/
int vsl_at_bol;
/* Whether to try to fill the input buffer when we reach the
* end of it.
*/
int vsl_fill_buffer;
int vsl_buffer_status;
#define YY_BUFFER_NEW 0
#define YY_BUFFER_NORMAL 1
/* When an EOF's been seen but there's still some text to process
* then we mark the buffer as YY_EOF_PENDING, to indicate that we
* shouldn't try reading from the input source any more. We might
* still have a bunch of tokens to match, though, because of
* possible backing-up.
*
* When we actually see the EOF, we change the status to "new"
* (via vslrestart()), so that the user can continue scanning by
* just pointing vslin at a new input file.
*/
#define YY_BUFFER_EOF_PENDING 2
};
static YY_BUFFER_STATE vsl_current_buffer = 0;
/* We provide macros for accessing buffer states in case in the
* future we want to put the buffer states in a more general
* "scanner state".
*/
#define YY_CURRENT_BUFFER vsl_current_buffer
/* vsl_hold_char holds the character lost when vsltext is formed. */
static char vsl_hold_char;
static int vsl_n_chars; /* number of characters read into vsl_ch_buf */
int vslleng;
/* Points to current character in buffer. */
static char *vsl_c_buf_p = (char *) 0;
static int vsl_init = 1; /* whether we need to initialize */
static int vsl_start = 0; /* start state number */
/* Flag which is used to allow vslwrap()'s to do buffer switches
* instead of setting up a fresh vslin. A bit of a hack ...
*/
static int vsl_did_buffer_switch_on_eof;
void vslrestart YY_PROTO(( FILE *input_file ));
void vsl_switch_to_buffer YY_PROTO(( YY_BUFFER_STATE new_buffer ));
void vsl_load_buffer_state YY_PROTO(( void ));
YY_BUFFER_STATE vsl_create_buffer YY_PROTO(( FILE *file, int size ));
void vsl_delete_buffer YY_PROTO(( YY_BUFFER_STATE b ));
void vsl_init_buffer YY_PROTO(( YY_BUFFER_STATE b, FILE *file ));
void vsl_flush_buffer YY_PROTO(( YY_BUFFER_STATE b ));
#define YY_FLUSH_BUFFER vsl_flush_buffer( vsl_current_buffer )
YY_BUFFER_STATE vsl_scan_buffer YY_PROTO(( char *base, vsl_size_t size ));
YY_BUFFER_STATE vsl_scan_string YY_PROTO(( vslconst char *vsl_str ));
YY_BUFFER_STATE vsl_scan_bytes YY_PROTO(( vslconst char *bytes, int len ));
static void *vsl_flex_alloc YY_PROTO(( vsl_size_t ));
static void *vsl_flex_realloc YY_PROTO(( void *, vsl_size_t ));
static void vsl_flex_free YY_PROTO(( void * ));
#define vsl_new_buffer vsl_create_buffer
#define vsl_set_interactive(is_interactive) \
{ \
if ( ! vsl_current_buffer ) \
vsl_current_buffer = vsl_create_buffer( vslin, YY_BUF_SIZE ); \
vsl_current_buffer->vsl_is_interactive = is_interactive; \
}
#define vsl_set_bol(at_bol) \
{ \
if ( ! vsl_current_buffer ) \
vsl_current_buffer = vsl_create_buffer( vslin, YY_BUF_SIZE ); \
vsl_current_buffer->vsl_at_bol = at_bol; \
}
#define YY_AT_BOL() (vsl_current_buffer->vsl_at_bol)
typedef unsigned char YY_CHAR;
FILE *vslin = (FILE *) 0, *vslout = (FILE *) 0;
typedef int vsl_state_type;
// extern char *vsltext;
#define vsltext_ptr vsltext
static vsl_state_type vsl_get_previous_state YY_PROTO(( void ));
static vsl_state_type vsl_try_NUL_trans YY_PROTO(( vsl_state_type current_state ));
static int vsl_get_next_buffer YY_PROTO(( void ));
static void vsl_fatal_error YY_PROTO(( vslconst char msg[] ));
/* Done after the current pattern has been matched and before the
* corresponding action - sets up vsltext.
*/
#define YY_DO_BEFORE_ACTION \
vsltext_ptr = vsl_bp; \
vslleng = (int) (vsl_cp - vsl_bp); \
vsl_hold_char = *vsl_cp; \
*vsl_cp = '\0'; \
vsl_c_buf_p = vsl_cp;
#define YY_NUM_RULES 44
#define YY_END_OF_BUFFER 45
static vslconst short int vsl_accept[149] =
{ 0,
41, 41, 45, 43, 41, 42, 43, 29, 43, 43,
43, 40, 28, 37, 33, 35, 25, 31, 25, 25,
25, 25, 25, 25, 25, 25, 25, 30, 32, 41,
43, 41, 0, 1, 0, 26, 0, 3, 2, 40,
27, 38, 34, 36, 25, 25, 25, 18, 14, 23,
25, 25, 19, 25, 25, 41, 0, 0, 4, 0,
0, 0, 0, 0, 0, 0, 1, 0, 39, 2,
20, 25, 22, 21, 25, 25, 4, 0, 0, 0,
0, 0, 0, 16, 25, 15, 25, 0, 0, 0,
0, 0, 0, 17, 24, 0, 0, 0, 0, 0,
0, 0, 7, 0, 0, 0, 9, 0, 7, 7,
0, 0, 0, 0, 0, 0, 0, 0, 0, 10,
0, 0, 0, 8, 0, 0, 0, 0, 5, 0,
6, 0, 0, 0, 5, 6, 0, 0, 0, 0,
0, 12, 0, 0, 0, 13, 11, 0
} ;
static vslconst int vsl_ec[256] =
{ 0,
1, 1, 1, 1, 1, 1, 1, 1, 2, 3,
1, 2, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 2, 4, 5, 6, 1, 1, 7, 1, 1,
1, 8, 1, 1, 9, 10, 11, 12, 12, 12,
12, 12, 12, 12, 12, 12, 12, 13, 1, 14,
15, 16, 1, 1, 17, 17, 17, 17, 17, 17,
17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
17, 17, 17, 17, 17, 17, 17, 17, 17, 17,
1, 18, 1, 19, 17, 1, 20, 17, 21, 22,
23, 24, 25, 26, 27, 17, 17, 28, 29, 30,
31, 32, 17, 33, 34, 35, 36, 37, 38, 17,
17, 17, 1, 39, 1, 40, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1
} ;
static vslconst int vsl_meta[41] =
{ 0,
1, 1, 2, 1, 1, 1, 1, 1, 1, 1,
1, 3, 1, 1, 1, 1, 3, 1, 1, 3,
3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
3, 3, 3, 3, 3, 3, 3, 3, 1, 1
} ;
static vslconst short int vsl_base[159] =
{ 0,
0, 39, 191, 192, 188, 192, 37, 192, 173, 178,
35, 175, 173, 32, 192, 170, 0, 192, 154, 155,
155, 20, 158, 149, 146, 152, 151, 192, 192, 47,
54, 174, 46, 192, 47, 192, 165, 192, 0, 162,
192, 192, 192, 192, 0, 151, 138, 0, 0, 0,
136, 135, 0, 146, 145, 55, 0, 163, 0, 136,
138, 127, 130, 139, 131, 49, 54, 55, 192, 0,
0, 39, 0, 0, 130, 126, 0, 137, 127, 133,
135, 122, 131, 0, 128, 0, 128, 122, 126, 115,
122, 118, 122, 0, 0, 108, 141, 109, 112, 120,
115, 116, 135, 109, 115, 113, 192, 110, 0, 130,
109, 61, 106, 66, 103, 67, 86, 97, 87, 192,
74, 109, 95, 192, 85, 73, 80, 96, 0, 83,
0, 63, 67, 70, 0, 0, 58, 69, 60, 56,
57, 192, 55, 52, 51, 192, 192, 192, 103, 67,
106, 109, 112, 115, 118, 121, 124, 127
} ;
static vslconst short int vsl_def[159] =
{ 0,
148, 1, 148, 148, 148, 148, 149, 148, 148, 148,
148, 148, 148, 148, 148, 148, 150, 148, 150, 150,
150, 150, 150, 150, 150, 150, 150, 148, 148, 148,
148, 148, 149, 148, 151, 148, 148, 148, 152, 148,
148, 148, 148, 148, 150, 150, 150, 150, 150, 150,
150, 150, 150, 150, 150, 148, 31, 31, 153, 148,
148, 148, 148, 148, 148, 149, 149, 151, 148, 152,
150, 150, 150, 150, 150, 150, 153, 148, 148, 148,
148, 148, 148, 150, 150, 150, 150, 148, 148, 148,
148, 148, 148, 150, 150, 148, 148, 148, 148, 148,
148, 148, 154, 148, 148, 148, 148, 148, 154, 154,
148, 148, 148, 148, 148, 148, 148, 148, 148, 148,
148, 155, 156, 148, 148, 148, 148, 155, 157, 156,
158, 148, 148, 148, 157, 158, 148, 148, 148, 148,
148, 148, 148, 148, 148, 148, 148, 0, 148, 148,
148, 148, 148, 148, 148, 148, 148, 148
} ;
static vslconst short int vsl_nxt[233] =
{ 0,
4, 5, 6, 4, 7, 4, 8, 4, 9, 10,
11, 12, 13, 14, 15, 16, 17, 4, 18, 19,
17, 17, 20, 21, 17, 17, 22, 23, 17, 24,
25, 17, 17, 17, 26, 17, 17, 27, 28, 29,
30, 34, 38, 49, 31, 39, 42, 43, 56, 50,
34, 67, 57, 34, 35, 58, 56, 59, 34, 67,
57, 84, 116, 35, 68, 85, 35, 121, 116, 45,
122, 35, 68, 147, 146, 121, 145, 144, 122, 123,
60, 61, 143, 142, 62, 63, 64, 123, 141, 65,
140, 117, 139, 118, 138, 137, 119, 117, 131, 118,
129, 134, 119, 33, 133, 33, 66, 132, 66, 70,
131, 70, 77, 129, 77, 109, 127, 109, 128, 126,
128, 130, 125, 130, 135, 124, 135, 136, 120, 136,
115, 110, 114, 113, 112, 111, 110, 108, 107, 106,
105, 104, 103, 102, 101, 100, 99, 98, 97, 96,
95, 94, 93, 92, 91, 90, 89, 88, 87, 86,
83, 82, 81, 80, 79, 78, 148, 76, 75, 74,
73, 72, 71, 40, 69, 32, 55, 54, 53, 52,
51, 48, 47, 46, 44, 41, 40, 37, 36, 32,
148, 3, 148, 148, 148, 148, 148, 148, 148, 148,
148, 148, 148, 148, 148, 148, 148, 148, 148, 148,
148, 148, 148, 148, 148, 148, 148, 148, 148, 148,
148, 148, 148, 148, 148, 148, 148, 148, 148, 148,
148, 148
} ;
static vslconst short int vsl_chk[233] =
{ 0,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
2, 7, 11, 22, 2, 11, 14, 14, 30, 22,
33, 35, 30, 66, 7, 31, 56, 31, 67, 68,
56, 72, 112, 33, 35, 72, 66, 114, 116, 150,
114, 67, 68, 145, 144, 121, 143, 141, 121, 114,
31, 31, 140, 139, 31, 31, 31, 121, 138, 31,
137, 112, 134, 112, 133, 132, 112, 116, 130, 116,
128, 127, 116, 149, 126, 149, 151, 125, 151, 152,
123, 152, 153, 122, 153, 154, 119, 154, 155, 118,
155, 156, 117, 156, 157, 115, 157, 158, 113, 158,
111, 110, 108, 106, 105, 104, 103, 102, 101, 100,
99, 98, 97, 96, 93, 92, 91, 90, 89, 88,
87, 85, 83, 82, 81, 80, 79, 78, 76, 75,
65, 64, 63, 62, 61, 60, 58, 55, 54, 52,
51, 47, 46, 40, 37, 32, 27, 26, 25, 24,
23, 21, 20, 19, 16, 13, 12, 10, 9, 5,
3, 148, 148, 148, 148, 148, 148, 148, 148, 148,
148, 148, 148, 148, 148, 148, 148, 148, 148, 148,
148, 148, 148, 148, 148, 148, 148, 148, 148, 148,
148, 148, 148, 148, 148, 148, 148, 148, 148, 148,
148, 148
} ;
static vsl_state_type vsl_last_accepting_state;
static char *vsl_last_accepting_cpos;
/* The intent behind this definition is that it'll catch
* any uses of REJECT which flex missed.
*/
#define REJECT reject_used_but_not_detected
#define vslmore() vslmore_used_but_not_detected
#define YY_MORE_ADJ 0
#define YY_RESTORE_YY_MORE_OFFSET
char *vsltext;
#line 1 "./vsl-lex.L"
#define INITIAL 0
/* $Id: vsl-lex.L,v 1.21 1998/11/23 17:43:48 zeller Exp $ -*- C++ -*- */
/* VSL lexical analysis */
#line 5 "./vsl-lex.L"
// Copyright (C) 1995 Technische Universitaet Braunschweig, Germany.
// Written by Andreas Zeller <zeller@ips.cs.tu-bs.de>.
//
// This file is part of DDD.
//
// DDD is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// DDD is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
// See the GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public
// License along with DDD -- see the file COPYING.
// If not, write to the Free Software Foundation, Inc.,
// 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
// DDD is the data display debugger.
// For details, see the DDD World-Wide-Web page,
// `http://www.cs.tu-bs.de/softech/ddd/',
// or send a mail to the DDD developers <ddd@ips.cs.tu-bs.de>.
char VSL_lex_rcsid[] =
"$Id: vsl-lex.L,v 1.21 1998/11/23 17:43:48 zeller Exp $";
// Define BAD_ISTREAM != 0, if istream::open() aborts upon
// non-existing file
#define BAD_ISTREAM 1
#include <stdio.h>
#include <errno.h>
#include "strclass.h"
static const int max_include_nesting = 40; // max include nesting
static istream *streamstack[max_include_nesting]; // File descriptors
static string namestack[max_include_nesting]; // File names
static int linestack[max_include_nesting]; // File lines
static int topstack = 0; // Next free position
#ifdef FLEX_SCANNER
static YY_BUFFER_STATE bufstack[max_include_nesting]; // Buffer states
#endif
static istream *vslstream = &cin;
static int vsllinenumber;
static int switchdown();
static int switchup(char *filename, bool thisdir);
static char pushback[BUFSIZ];
static char *pushback_ptr = pushback;
inline int do_unput(char c)
{
if (c != '\0')
*pushback_ptr++ = c;
return c;
}
static int do_input()
{
if (pushback_ptr != pushback)
return *--pushback_ptr;
char c;
vslstream->get(c);
if (vslstream->eof())
return 0;
if (c == '\n')
vsllinenumber++;
return c;
}
// The way SUN lex wants input
#ifdef input
#undef input
#define input do_input
#endif
#ifdef unput
#undef unput
#define unput do_unput
#endif
// The way FLEX wants input
#ifdef FLEX_SCANNER
#undef YY_INPUT
#define YY_INPUT(buf, result, max_size) \
{\
int c = do_input(); \
result = (c == '\0') ? YY_NULL : (buf[0] = c, 1); \
}
#endif
#undef vslwrap
#define YY_SKIP_YYWRAP
extern "C" int vslwrap()
{
if (switchdown())
return 1;
return vslstream->eof();
}
// Anything not in the list is a single character
#ifdef ECHO
#undef ECHO
#endif
#define ECHO return vsltext[0]
#ifdef FLEX_SCANNER
// #defining YY_BREAK to empty disables warnings about unreachable breaks.
#define YY_BREAK DO_NOT_BREAK
#define DO_NOT_BREAK
#define BREAK break;
#endif // FLEX_SCANNER
/* C-Bezeichner */
/* C-Strings */
/* C-Integers */
/* #include-Strings */
/* Whitespace */
#line 597 "lex.vsl.c"
/* Macros after this point can all be overridden by user definitions in
* section 1.
*/
#ifndef YY_SKIP_YYWRAP
#ifdef __cplusplus
extern "C" int vslwrap YY_PROTO(( void ));
#else
extern int vslwrap YY_PROTO(( void ));
#endif
#endif
#ifndef YY_NO_UNPUT
static void vslunput YY_PROTO(( int c, char *buf_ptr ));
#endif
#ifndef vsltext_ptr
static void vsl_flex_strncpy YY_PROTO(( char *, vslconst char *, int ));
#endif
#ifdef YY_NEED_STRLEN
static int vsl_flex_strlen YY_PROTO(( vslconst char * ));
#endif
#ifndef YY_NO_INPUT
#ifdef __cplusplus
static int vslinput YY_PROTO(( void ));
#else
static int input YY_PROTO(( void ));
#endif
#endif
#if YY_STACK_USED
static int vsl_start_stack_ptr = 0;
static int vsl_start_stack_depth = 0;
static int *vsl_start_stack = 0;
#ifndef YY_NO_PUSH_STATE
static void vsl_push_state YY_PROTO(( int new_state ));
#endif
#ifndef YY_NO_POP_STATE
static void vsl_pop_state YY_PROTO(( void ));
#endif
#ifndef YY_NO_TOP_STATE
static int vsl_top_state YY_PROTO(( void ));
#endif
#else
#define YY_NO_PUSH_STATE 1
#define YY_NO_POP_STATE 1
#define YY_NO_TOP_STATE 1
#endif
#ifdef YY_MALLOC_DECL
YY_MALLOC_DECL
#else
#if __STDC__
#ifndef __cplusplus
#include <stdlib.h>
#endif
#else
/* Just try to get by without declaring the routines. This will fail
* miserably on non-ANSI systems for which sizeof(size_t) != sizeof(int)
* or sizeof(void*) != sizeof(int).
*/
#endif
#endif
/* Amount of stuff to slurp up with each read. */
#ifndef YY_READ_BUF_SIZE
#define YY_READ_BUF_SIZE 8192
#endif
/* Copy whatever the last rule matched to the standard output. */
#ifndef ECHO
/* This used to be an fputs(), but since the string might contain NUL's,
* we now use fwrite().
*/
#define ECHO (void) fwrite( vsltext, vslleng, 1, vslout )
#endif
/* Gets input and stuffs it into "buf". number of characters read, or YY_NULL,
* is returned in "result".
*/
#ifndef YY_INPUT
#define YY_INPUT(buf,result,max_size) \
if ( vsl_current_buffer->vsl_is_interactive ) \
{ \
int c = '*', n; \
for ( n = 0; n < max_size && \
(c = getc( vslin )) != EOF && c != '\n'; ++n ) \
buf[n] = (char) c; \
if ( c == '\n' ) \
buf[n++] = (char) c; \
if ( c == EOF && ferror( vslin ) ) \
YY_FATAL_ERROR( "input in flex scanner failed" ); \
result = n; \
} \
else if ( ((result = fread( buf, 1, max_size, vslin )) == 0) \
&& ferror( vslin ) ) \
YY_FATAL_ERROR( "input in flex scanner failed" );
#endif
/* No semi-colon after return; correct usage is to write "vslterminate();" -
* we don't want an extra ';' after the "return" because that will cause
* some compilers to complain about unreachable statements.
*/
#ifndef vslterminate
#define vslterminate() return YY_NULL
#endif
/* Number of entries by which start-condition stack grows. */
#ifndef YY_START_STACK_INCR
#define YY_START_STACK_INCR 25
#endif
/* Report a fatal error. */
#ifndef YY_FATAL_ERROR
#define YY_FATAL_ERROR(msg) vsl_fatal_error( msg )
#endif
/* Default declaration of generated scanner - a define so the user can
* easily add parameters.
*/
#ifndef YY_DECL
#define YY_DECL int vsllex YY_PROTO(( void ))
#endif
/* Code executed at the beginning of each rule, after vsltext and vslleng
* have been set up.
*/
#ifndef YY_USER_ACTION
#define YY_USER_ACTION
#endif
/* Code executed at the end of each rule. */
#ifndef YY_BREAK
#define YY_BREAK break;
#endif
#define YY_RULE_SETUP \
if ( vslleng > 0 ) \
vsl_current_buffer->vsl_at_bol = \
(vsltext[vslleng - 1] == '\n'); \
YY_USER_ACTION
YY_DECL
{
register vsl_state_type vsl_current_state;
register char *vsl_cp, *vsl_bp;
register int vsl_act;
#line 149 "./vsl-lex.L"
#line 754 "lex.vsl.c"
if ( vsl_init )
{
vsl_init = 0;
#ifdef YY_USER_INIT
YY_USER_INIT;
#endif
if ( ! vsl_start )
vsl_start = 1; /* first start state */
if ( ! vslin )
vslin = stdin;
if ( ! vslout )
vslout = stdout;
if ( ! vsl_current_buffer )
vsl_current_buffer =
vsl_create_buffer( vslin, YY_BUF_SIZE );
vsl_load_buffer_state();
}
while ( 1 ) /* loops until end-of-file is reached */
{
vsl_cp = vsl_c_buf_p;
/* Support of vsltext. */
*vsl_cp = vsl_hold_char;
/* vsl_bp points to the position in vsl_ch_buf of the start of
* the current run.
*/
vsl_bp = vsl_cp;
vsl_current_state = vsl_start;
vsl_current_state += YY_AT_BOL();
vsl_match:
do
{
register YY_CHAR vsl_c = vsl_ec[YY_SC_TO_UI(*vsl_cp)];
if ( vsl_accept[vsl_current_state] )
{
vsl_last_accepting_state = vsl_current_state;
vsl_last_accepting_cpos = vsl_cp;
}
while ( vsl_chk[vsl_base[vsl_current_state] + vsl_c] != vsl_current_state )
{
vsl_current_state = (int) vsl_def[vsl_current_state];
if ( vsl_current_state >= 149 )
vsl_c = vsl_meta[(unsigned int) vsl_c];
}
vsl_current_state = vsl_nxt[vsl_base[vsl_current_state] + (unsigned int) vsl_c];
++vsl_cp;
}
while ( vsl_base[vsl_current_state] != 192 );
vsl_find_action:
vsl_act = vsl_accept[vsl_current_state];
if ( vsl_act == 0 )
{ /* have to back up */
vsl_cp = vsl_last_accepting_cpos;
vsl_current_state = vsl_last_accepting_state;
vsl_act = vsl_accept[vsl_current_state];
}
YY_DO_BEFORE_ACTION;
do_action: /* This label is used only to access EOF actions. */
switch ( vsl_act )
{ /* beginning of action switch */
case 0: /* must back up */
/* undo the effects of YY_DO_BEFORE_ACTION */
*vsl_cp = vsl_hold_char;
vsl_cp = vsl_last_accepting_cpos;
vsl_current_state = vsl_last_accepting_state;
goto vsl_find_action;
case 1:
YY_RULE_SETUP
#line 151 "./vsl-lex.L"
return STRING; // string
YY_BREAK
case 2:
YY_RULE_SETUP
#line 153 "./vsl-lex.L"
BREAK // C++ comment
YY_BREAK
case 3:
YY_RULE_SETUP
#line 154 "./vsl-lex.L"
{ // C comment
// aus `man lex`
loop:
while (vslinput() != '*');
switch (vslinput())
{
case '/': break;
case '*': unput('*');
default : goto loop;
}
BREAK
}
YY_BREAK
case 4:
YY_RULE_SETUP
#line 166 "./vsl-lex.L"
BREAK // Unix exec() tag
YY_BREAK
case 5:
YY_RULE_SETUP
#line 168 "./vsl-lex.L"
{ // #include "..."
char buf[BUFSIZ];
strcpy(buf, (char *)vsltext);
char *start = buf;
while (*start != '\"')
start++;
char *end = ++start;
while (*end != '\"')
end++;
*end = '\0';
switchup(start, true);
BREAK
}
YY_BREAK
case 6:
YY_RULE_SETUP
#line 181 "./vsl-lex.L"
{ // #include <...>
char buf[BUFSIZ];
strcpy(buf, (char *)vsltext);
char *start = buf;
while (*start != '<')
start++;
char *end = ++start;
while (*end != '>')
end++;
*end = '\0';
switchup(start, false);
BREAK
}
YY_BREAK
case 7:
YY_RULE_SETUP
#line 194 "./vsl-lex.L"
{ // #line LINE ["FILE"]
string buf((char *)vsltext);
buf = buf.after("line");
char *s = (char *)buf.chars();
int line = strtol(s, &s, 10);
if (s == buf.chars())
VSLLib::parse_error("illegal #line number");
else
vsllinenumber = line;
buf = buf.after('"');
if (buf != "")
{
buf = buf.before('"');
if (buf == "")
VSLLib::parse_error("illegal #line file");
else
vslfilename = uncook(buf);
}
BREAK
}
YY_BREAK
case 8:
YY_RULE_SETUP
#line 216 "./vsl-lex.L"
return OVERRIDE; // Other manipulators
YY_BREAK
case 9:
YY_RULE_SETUP
#line 217 "./vsl-lex.L"
return OVERRIDE;
YY_BREAK
case 10:
YY_RULE_SETUP
#line 218 "./vsl-lex.L"
return REPLACE;
YY_BREAK
case 11:
YY_RULE_SETUP
#line 219 "./vsl-lex.L"
return OVERRIDE; // Other manipulators
YY_BREAK
case 12:
YY_RULE_SETUP
#line 220 "./vsl-lex.L"
return OVERRIDE;
YY_BREAK
case 13:
YY_RULE_SETUP
#line 221 "./vsl-lex.L"
return REPLACE;
YY_BREAK
case 14:
YY_RULE_SETUP
#line 223 "./vsl-lex.L"
return IF; // Tokens
YY_BREAK
case 15:
YY_RULE_SETUP
#line 224 "./vsl-lex.L"
return THEN;
YY_BREAK
case 16:
YY_RULE_SETUP
#line 225 "./vsl-lex.L"
return ELSE;
YY_BREAK
case 17:
YY_RULE_SETUP
#line 226 "./vsl-lex.L"
return ELSIF;
YY_BREAK
case 18:
YY_RULE_SETUP
#line 227 "./vsl-lex.L"
return FI;
YY_BREAK
case 19:
YY_RULE_SETUP
#line 228 "./vsl-lex.L"
return OR;
YY_BREAK
case 20:
YY_RULE_SETUP
#line 229 "./vsl-lex.L"
return AND;
YY_BREAK
case 21:
YY_RULE_SETUP
#line 230 "./vsl-lex.L"
return NOT;
YY_BREAK
case 22:
YY_RULE_SETUP
#line 231 "./vsl-lex.L"
return LET;
YY_BREAK
case 23:
YY_RULE_SETUP
#line 232 "./vsl-lex.L"
return IN;
YY_BREAK
case 24:
YY_RULE_SETUP
#line 233 "./vsl-lex.L"
return WHERE;
YY_BREAK
case 25:
YY_RULE_SETUP
#line 234 "./vsl-lex.L"
return IDENTIFIER;
YY_BREAK
case 26:
YY_RULE_SETUP
#line 236 "./vsl-lex.L"
return ARROW;
YY_BREAK
case 27:
YY_RULE_SETUP
#line 237 "./vsl-lex.L"
return CONS;
YY_BREAK
case 28:
YY_RULE_SETUP
#line 238 "./vsl-lex.L"
return APPEND;
YY_BREAK
case 29:
YY_RULE_SETUP
#line 239 "./vsl-lex.L"
return HALIGN;
YY_BREAK
case 30:
YY_RULE_SETUP
#line 240 "./vsl-lex.L"
return VALIGN;
YY_BREAK
case 31:
YY_RULE_SETUP
#line 241 "./vsl-lex.L"
return UALIGN;
YY_BREAK
case 32:
YY_RULE_SETUP
#line 242 "./vsl-lex.L"
return TALIGN;
YY_BREAK
case 33:
YY_RULE_SETUP
#line 243 "./vsl-lex.L"
return EQ;
YY_BREAK
case 34:
YY_RULE_SETUP
#line 244 "./vsl-lex.L"
return NE;
YY_BREAK
case 35:
YY_RULE_SETUP
#line 245 "./vsl-lex.L"
return GT;
YY_BREAK
case 36:
YY_RULE_SETUP
#line 246 "./vsl-lex.L"
return GE;
YY_BREAK
case 37:
YY_RULE_SETUP
#line 247 "./vsl-lex.L"
return LT;
YY_BREAK
case 38:
YY_RULE_SETUP
#line 248 "./vsl-lex.L"
return LE;
YY_BREAK
case 39:
YY_RULE_SETUP
#line 250 "./vsl-lex.L"
return THREEDOTS;
YY_BREAK
case 40:
YY_RULE_SETUP
#line 252 "./vsl-lex.L"
return INTEGER;
YY_BREAK
case 41:
YY_RULE_SETUP
#line 254 "./vsl-lex.L"
BREAK // Whitespace (ignore)
YY_BREAK
case 42:
YY_RULE_SETUP
#line 255 "./vsl-lex.L"
BREAK // Likewise
YY_BREAK
case 43:
YY_RULE_SETUP
#line 256 "./vsl-lex.L"
return vsltext[0]; // All other characters
YY_BREAK
case 44:
YY_RULE_SETUP
#line 257 "./vsl-lex.L"
ECHO;
YY_BREAK
#line 1113 "lex.vsl.c"
case YY_STATE_EOF(INITIAL):
vslterminate();
case YY_END_OF_BUFFER:
{
/* Amount of text matched not including the EOB char. */
int vsl_amount_of_matched_text = (int) (vsl_cp - vsltext_ptr) - 1;
/* Undo the effects of YY_DO_BEFORE_ACTION. */
*vsl_cp = vsl_hold_char;
YY_RESTORE_YY_MORE_OFFSET
if ( vsl_current_buffer->vsl_buffer_status == YY_BUFFER_NEW )
{
/* We're scanning a new file or input source. It's
* possible that this happened because the user
* just pointed vslin at a new source and called
* vsllex(). If so, then we have to assure
* consistency between vsl_current_buffer and our
* globals. Here is the right place to do so, because
* this is the first action (other than possibly a
* back-up) that will match for the new input source.
*/
vsl_n_chars = vsl_current_buffer->vsl_n_chars;
vsl_current_buffer->vsl_input_file = vslin;
vsl_current_buffer->vsl_buffer_status = YY_BUFFER_NORMAL;
}
/* Note that here we test for vsl_c_buf_p "<=" to the position
* of the first EOB in the buffer, since vsl_c_buf_p will
* already have been incremented past the NUL character
* (since all states make transitions on EOB to the
* end-of-buffer state). Contrast this with the test
* in input().
*/
if ( vsl_c_buf_p <= &vsl_current_buffer->vsl_ch_buf[vsl_n_chars] )
{ /* This was really a NUL. */
vsl_state_type vsl_next_state;
vsl_c_buf_p = vsltext_ptr + vsl_amount_of_matched_text;
vsl_current_state = vsl_get_previous_state();
/* Okay, we're now positioned to make the NUL
* transition. We couldn't have
* vsl_get_previous_state() go ahead and do it
* for us because it doesn't know how to deal
* with the possibility of jamming (and we don't
* want to build jamming into it because then it
* will run more slowly).
*/
vsl_next_state = vsl_try_NUL_trans( vsl_current_state );
vsl_bp = vsltext_ptr + YY_MORE_ADJ;
if ( vsl_next_state )
{
/* Consume the NUL. */
vsl_cp = ++vsl_c_buf_p;
vsl_current_state = vsl_next_state;
goto vsl_match;
}
else
{
vsl_cp = vsl_c_buf_p;
goto vsl_find_action;
}
}
else switch ( vsl_get_next_buffer() )
{
case EOB_ACT_END_OF_FILE:
{
vsl_did_buffer_switch_on_eof = 0;
if ( vslwrap() )
{
/* Note: because we've taken care in
* vsl_get_next_buffer() to have set up
* vsltext, we can now set up
* vsl_c_buf_p so that if some total
* hoser (like flex itself) wants to
* call the scanner after we return the
* YY_NULL, it'll still work - another
* YY_NULL will get returned.
*/
vsl_c_buf_p = vsltext_ptr + YY_MORE_ADJ;
vsl_act = YY_STATE_EOF(YY_START);
goto do_action;
}
else
{
if ( ! vsl_did_buffer_switch_on_eof )
YY_NEW_FILE;
}
break;
}
case EOB_ACT_CONTINUE_SCAN:
vsl_c_buf_p =
vsltext_ptr + vsl_amount_of_matched_text;
vsl_current_state = vsl_get_previous_state();
vsl_cp = vsl_c_buf_p;
vsl_bp = vsltext_ptr + YY_MORE_ADJ;
goto vsl_match;
case EOB_ACT_LAST_MATCH:
vsl_c_buf_p =
&vsl_current_buffer->vsl_ch_buf[vsl_n_chars];
vsl_current_state = vsl_get_previous_state();
vsl_cp = vsl_c_buf_p;
vsl_bp = vsltext_ptr + YY_MORE_ADJ;
goto vsl_find_action;
}
break;
}
default:
YY_FATAL_ERROR(
"fatal flex scanner internal error--no action found" );
} /* end of action switch */
} /* end of scanning one token */
} /* end of vsllex */
/* vsl_get_next_buffer - try to read in a new buffer
*
* Returns a code representing an action:
* EOB_ACT_LAST_MATCH -
* EOB_ACT_CONTINUE_SCAN - continue scanning from current position
* EOB_ACT_END_OF_FILE - end of file
*/
static int vsl_get_next_buffer()
{
register char *dest = vsl_current_buffer->vsl_ch_buf;
register char *source = vsltext_ptr;
register int number_to_move, i;
int ret_val;
if ( vsl_c_buf_p > &vsl_current_buffer->vsl_ch_buf[vsl_n_chars + 1] )
YY_FATAL_ERROR(
"fatal flex scanner internal error--end of buffer missed" );
if ( vsl_current_buffer->vsl_fill_buffer == 0 )
{ /* Don't try to fill the buffer, so this is an EOF. */
if ( vsl_c_buf_p - vsltext_ptr - YY_MORE_ADJ == 1 )
{
/* We matched a single character, the EOB, so
* treat this as a final EOF.
*/
return EOB_ACT_END_OF_FILE;
}
else
{
/* We matched some text prior to the EOB, first
* process it.
*/
return EOB_ACT_LAST_MATCH;
}
}
/* Try to read more data. */
/* First move last chars to start of buffer. */
number_to_move = (int) (vsl_c_buf_p - vsltext_ptr) - 1;
for ( i = 0; i < number_to_move; ++i )
*(dest++) = *(source++);
if ( vsl_current_buffer->vsl_buffer_status == YY_BUFFER_EOF_PENDING )
/* don't do the read, it's not guaranteed to return an EOF,
* just force an EOF
*/
vsl_current_buffer->vsl_n_chars = vsl_n_chars = 0;
else
{
int num_to_read =
vsl_current_buffer->vsl_buf_size - number_to_move - 1;
while ( num_to_read <= 0 )
{ /* Not enough room in the buffer - grow it. */
#ifdef YY_USES_REJECT
YY_FATAL_ERROR(
"input buffer overflow, can't enlarge buffer because scanner uses REJECT" );
#else
/* just a shorter name for the current buffer */
YY_BUFFER_STATE b = vsl_current_buffer;
int vsl_c_buf_p_offset =
(int) (vsl_c_buf_p - b->vsl_ch_buf);
if ( b->vsl_is_our_buffer )
{
int new_size = b->vsl_buf_size * 2;
if ( new_size <= 0 )
b->vsl_buf_size += b->vsl_buf_size / 8;
else
b->vsl_buf_size *= 2;
b->vsl_ch_buf = (char *)
/* Include room in for 2 EOB chars. */
vsl_flex_realloc( (void *) b->vsl_ch_buf,
b->vsl_buf_size + 2 );
}
else
/* Can't grow it, we don't own it. */
b->vsl_ch_buf = 0;
if ( ! b->vsl_ch_buf )
YY_FATAL_ERROR(
"fatal error - scanner input buffer overflow" );
vsl_c_buf_p = &b->vsl_ch_buf[vsl_c_buf_p_offset];
num_to_read = vsl_current_buffer->vsl_buf_size -
number_to_move - 1;
#endif
}
if ( num_to_read > YY_READ_BUF_SIZE )
num_to_read = YY_READ_BUF_SIZE;
/* Read in more data. */
YY_INPUT( (&vsl_current_buffer->vsl_ch_buf[number_to_move]),
vsl_n_chars, num_to_read );
vsl_current_buffer->vsl_n_chars = vsl_n_chars;
}
if ( vsl_n_chars == 0 )
{
if ( number_to_move == YY_MORE_ADJ )
{
ret_val = EOB_ACT_END_OF_FILE;
vslrestart( vslin );
}
else
{
ret_val = EOB_ACT_LAST_MATCH;
vsl_current_buffer->vsl_buffer_status =
YY_BUFFER_EOF_PENDING;
}
}
else
ret_val = EOB_ACT_CONTINUE_SCAN;
vsl_n_chars += number_to_move;
vsl_current_buffer->vsl_ch_buf[vsl_n_chars] = YY_END_OF_BUFFER_CHAR;
vsl_current_buffer->vsl_ch_buf[vsl_n_chars + 1] = YY_END_OF_BUFFER_CHAR;
vsltext_ptr = &vsl_current_buffer->vsl_ch_buf[0];
return ret_val;
}
/* vsl_get_previous_state - get the state just before the EOB char was reached */
static vsl_state_type vsl_get_previous_state()
{
register vsl_state_type vsl_current_state;
register char *vsl_cp;
vsl_current_state = vsl_start;
vsl_current_state += YY_AT_BOL();
for ( vsl_cp = vsltext_ptr + YY_MORE_ADJ; vsl_cp < vsl_c_buf_p; ++vsl_cp )
{
register YY_CHAR vsl_c = (*vsl_cp ? vsl_ec[YY_SC_TO_UI(*vsl_cp)] : 1);
if ( vsl_accept[vsl_current_state] )
{
vsl_last_accepting_state = vsl_current_state;
vsl_last_accepting_cpos = vsl_cp;
}
while ( vsl_chk[vsl_base[vsl_current_state] + vsl_c] != vsl_current_state )
{
vsl_current_state = (int) vsl_def[vsl_current_state];
if ( vsl_current_state >= 149 )
vsl_c = vsl_meta[(unsigned int) vsl_c];
}
vsl_current_state = vsl_nxt[vsl_base[vsl_current_state] + (unsigned int) vsl_c];
}
return vsl_current_state;
}
/* vsl_try_NUL_trans - try to make a transition on the NUL character
*
* synopsis
* next_state = vsl_try_NUL_trans( current_state );
*/
#ifdef YY_USE_PROTOS
static vsl_state_type vsl_try_NUL_trans( vsl_state_type vsl_current_state )
#else
static vsl_state_type vsl_try_NUL_trans( vsl_current_state )
vsl_state_type vsl_current_state;
#endif
{
register int vsl_is_jam;
register char *vsl_cp = vsl_c_buf_p;
register YY_CHAR vsl_c = 1;
if ( vsl_accept[vsl_current_state] )
{
vsl_last_accepting_state = vsl_current_state;
vsl_last_accepting_cpos = vsl_cp;
}
while ( vsl_chk[vsl_base[vsl_current_state] + vsl_c] != vsl_current_state )
{
vsl_current_state = (int) vsl_def[vsl_current_state];
if ( vsl_current_state >= 149 )
vsl_c = vsl_meta[(unsigned int) vsl_c];
}
vsl_current_state = vsl_nxt[vsl_base[vsl_current_state] + (unsigned int) vsl_c];
vsl_is_jam = (vsl_current_state == 148);
return vsl_is_jam ? 0 : vsl_current_state;
}
#ifndef YY_NO_UNPUT
#ifdef YY_USE_PROTOS
static void vslunput( int c, register char *vsl_bp )
#else
static void vslunput( c, vsl_bp )
int c;
register char *vsl_bp;
#endif
{
register char *vsl_cp = vsl_c_buf_p;
/* undo effects of setting up vsltext */
*vsl_cp = vsl_hold_char;
if ( vsl_cp < vsl_current_buffer->vsl_ch_buf + 2 )
{ /* need to shift things up to make room */
/* +2 for EOB chars. */
register int number_to_move = vsl_n_chars + 2;
register char *dest = &vsl_current_buffer->vsl_ch_buf[
vsl_current_buffer->vsl_buf_size + 2];
register char *source =
&vsl_current_buffer->vsl_ch_buf[number_to_move];
while ( source > vsl_current_buffer->vsl_ch_buf )
*--dest = *--source;
vsl_cp += (int) (dest - source);
vsl_bp += (int) (dest - source);
vsl_current_buffer->vsl_n_chars =
vsl_n_chars = vsl_current_buffer->vsl_buf_size;
if ( vsl_cp < vsl_current_buffer->vsl_ch_buf + 2 )
YY_FATAL_ERROR( "flex scanner push-back overflow" );
}
*--vsl_cp = (char) c;
vsltext_ptr = vsl_bp;
vsl_hold_char = *vsl_cp;
vsl_c_buf_p = vsl_cp;
}
#endif /* ifndef YY_NO_UNPUT */
#ifdef __cplusplus
static int vslinput()
#else
static int input()
#endif
{
int c;
*vsl_c_buf_p = vsl_hold_char;
if ( *vsl_c_buf_p == YY_END_OF_BUFFER_CHAR )
{
/* vsl_c_buf_p now points to the character we want to return.
* If this occurs *before* the EOB characters, then it's a
* valid NUL; if not, then we've hit the end of the buffer.
*/
if ( vsl_c_buf_p < &vsl_current_buffer->vsl_ch_buf[vsl_n_chars] )
/* This was really a NUL. */
*vsl_c_buf_p = '\0';
else
{ /* need more input */
int offset = vsl_c_buf_p - vsltext_ptr;
++vsl_c_buf_p;
switch ( vsl_get_next_buffer() )
{
case EOB_ACT_LAST_MATCH:
/* This happens because vsl_g_n_b()
* sees that we've accumulated a
* token and flags that we need to
* try matching the token before
* proceeding. But for input(),
* there's no matching to consider.
* So convert the EOB_ACT_LAST_MATCH
* to EOB_ACT_END_OF_FILE.
*/
/* Reset buffer status. */
vslrestart( vslin );
/* fall through */
case EOB_ACT_END_OF_FILE:
{
if ( vslwrap() )
return EOF;
if ( ! vsl_did_buffer_switch_on_eof )
YY_NEW_FILE;
#ifdef __cplusplus
return vslinput();
#else
return input();
#endif
}
case EOB_ACT_CONTINUE_SCAN:
vsl_c_buf_p = vsltext_ptr + offset;
break;
}
}
}
c = *(unsigned char *) vsl_c_buf_p; /* cast for 8-bit char's */
*vsl_c_buf_p = '\0'; /* preserve vsltext */
vsl_hold_char = *++vsl_c_buf_p;
vsl_current_buffer->vsl_at_bol = (c == '\n');
return c;
}
#ifdef YY_USE_PROTOS
void vslrestart( FILE *input_file )
#else
void vslrestart( input_file )
FILE *input_file;
#endif
{
if ( ! vsl_current_buffer )
vsl_current_buffer = vsl_create_buffer( vslin, YY_BUF_SIZE );
vsl_init_buffer( vsl_current_buffer, input_file );
vsl_load_buffer_state();
}
#ifdef YY_USE_PROTOS
void vsl_switch_to_buffer( YY_BUFFER_STATE new_buffer )
#else
void vsl_switch_to_buffer( new_buffer )
YY_BUFFER_STATE new_buffer;
#endif
{
if ( vsl_current_buffer == new_buffer )
return;
if ( vsl_current_buffer )
{
/* Flush out information for old buffer. */
*vsl_c_buf_p = vsl_hold_char;
vsl_current_buffer->vsl_buf_pos = vsl_c_buf_p;
vsl_current_buffer->vsl_n_chars = vsl_n_chars;
}
vsl_current_buffer = new_buffer;
vsl_load_buffer_state();
/* We don't actually know whether we did this switch during
* EOF (vslwrap()) processing, but the only time this flag
* is looked at is after vslwrap() is called, so it's safe
* to go ahead and always set it.
*/
vsl_did_buffer_switch_on_eof = 1;
}
#ifdef YY_USE_PROTOS
void vsl_load_buffer_state( void )
#else
void vsl_load_buffer_state()
#endif
{
vsl_n_chars = vsl_current_buffer->vsl_n_chars;
vsltext_ptr = vsl_c_buf_p = vsl_current_buffer->vsl_buf_pos;
vslin = vsl_current_buffer->vsl_input_file;
vsl_hold_char = *vsl_c_buf_p;
}
#ifdef YY_USE_PROTOS
YY_BUFFER_STATE vsl_create_buffer( FILE *file, int size )
#else
YY_BUFFER_STATE vsl_create_buffer( file, size )
FILE *file;
int size;
#endif
{
YY_BUFFER_STATE b;
b = (YY_BUFFER_STATE) vsl_flex_alloc( sizeof( struct vsl_buffer_state ) );
if ( ! b )
YY_FATAL_ERROR( "out of dynamic memory in vsl_create_buffer()" );
b->vsl_buf_size = size;
/* vsl_ch_buf has to be 2 characters longer than the size given because
* we need to put in 2 end-of-buffer characters.
*/
b->vsl_ch_buf = (char *) vsl_flex_alloc( b->vsl_buf_size + 2 );
if ( ! b->vsl_ch_buf )
YY_FATAL_ERROR( "out of dynamic memory in vsl_create_buffer()" );
b->vsl_is_our_buffer = 1;
vsl_init_buffer( b, file );
return b;
}
#ifdef YY_USE_PROTOS
void vsl_delete_buffer( YY_BUFFER_STATE b )
#else
void vsl_delete_buffer( b )
YY_BUFFER_STATE b;
#endif
{
if ( ! b )
return;
if ( b == vsl_current_buffer )
vsl_current_buffer = (YY_BUFFER_STATE) 0;
if ( b->vsl_is_our_buffer )
vsl_flex_free( (void *) b->vsl_ch_buf );
vsl_flex_free( (void *) b );
}
#ifndef YY_ALWAYS_INTERACTIVE
#ifndef YY_NEVER_INTERACTIVE
extern int isatty YY_PROTO(( int ));
#endif
#endif
#ifdef YY_USE_PROTOS
void vsl_init_buffer( YY_BUFFER_STATE b, FILE *file )
#else
void vsl_init_buffer( b, file )
YY_BUFFER_STATE b;
FILE *file;
#endif
{
vsl_flush_buffer( b );
b->vsl_input_file = file;
b->vsl_fill_buffer = 1;
#if YY_ALWAYS_INTERACTIVE
b->vsl_is_interactive = 1;
#else
#if YY_NEVER_INTERACTIVE
b->vsl_is_interactive = 0;
#else
b->vsl_is_interactive = file ? (isatty( fileno(file) ) > 0) : 0;
#endif
#endif
}
#ifdef YY_USE_PROTOS
void vsl_flush_buffer( YY_BUFFER_STATE b )
#else
void vsl_flush_buffer( b )
YY_BUFFER_STATE b;
#endif
{
if ( ! b )
return;
b->vsl_n_chars = 0;
/* We always need two end-of-buffer characters. The first causes
* a transition to the end-of-buffer state. The second causes
* a jam in that state.
*/
b->vsl_ch_buf[0] = YY_END_OF_BUFFER_CHAR;
b->vsl_ch_buf[1] = YY_END_OF_BUFFER_CHAR;
b->vsl_buf_pos = &b->vsl_ch_buf[0];
b->vsl_at_bol = 1;
b->vsl_buffer_status = YY_BUFFER_NEW;
if ( b == vsl_current_buffer )
vsl_load_buffer_state();
}
#ifndef YY_NO_SCAN_BUFFER
#ifdef YY_USE_PROTOS
YY_BUFFER_STATE vsl_scan_buffer( char *base, vsl_size_t size )
#else
YY_BUFFER_STATE vsl_scan_buffer( base, size )
char *base;
vsl_size_t size;
#endif
{
YY_BUFFER_STATE b;
if ( size < 2 ||
base[size-2] != YY_END_OF_BUFFER_CHAR ||
base[size-1] != YY_END_OF_BUFFER_CHAR )
/* They forgot to leave room for the EOB's. */
return 0;
b = (YY_BUFFER_STATE) vsl_flex_alloc( sizeof( struct vsl_buffer_state ) );
if ( ! b )
YY_FATAL_ERROR( "out of dynamic memory in vsl_scan_buffer()" );
b->vsl_buf_size = size - 2; /* "- 2" to take care of EOB's */
b->vsl_buf_pos = b->vsl_ch_buf = base;
b->vsl_is_our_buffer = 0;
b->vsl_input_file = 0;
b->vsl_n_chars = b->vsl_buf_size;
b->vsl_is_interactive = 0;
b->vsl_at_bol = 1;
b->vsl_fill_buffer = 0;
b->vsl_buffer_status = YY_BUFFER_NEW;
vsl_switch_to_buffer( b );
return b;
}
#endif
#ifndef YY_NO_SCAN_STRING
#ifdef YY_USE_PROTOS
YY_BUFFER_STATE vsl_scan_string( vslconst char *vsl_str )
#else
YY_BUFFER_STATE vsl_scan_string( vsl_str )
vslconst char *vsl_str;
#endif
{
int len;
for ( len = 0; vsl_str[len]; ++len )
;
return vsl_scan_bytes( vsl_str, len );
}
#endif
#ifndef YY_NO_SCAN_BYTES
#ifdef YY_USE_PROTOS
YY_BUFFER_STATE vsl_scan_bytes( vslconst char *bytes, int len )
#else
YY_BUFFER_STATE vsl_scan_bytes( bytes, len )
vslconst char *bytes;
int len;
#endif
{
YY_BUFFER_STATE b;
char *buf;
vsl_size_t n;
int i;
/* Get memory for full buffer, including space for trailing EOB's. */
n = len + 2;
buf = (char *) vsl_flex_alloc( n );
if ( ! buf )
YY_FATAL_ERROR( "out of dynamic memory in vsl_scan_bytes()" );
for ( i = 0; i < len; ++i )
buf[i] = bytes[i];
buf[len] = buf[len+1] = YY_END_OF_BUFFER_CHAR;
b = vsl_scan_buffer( buf, n );
if ( ! b )
YY_FATAL_ERROR( "bad buffer in vsl_scan_bytes()" );
/* It's okay to grow etc. this buffer, and we should throw it
* away when we're done.
*/
b->vsl_is_our_buffer = 1;
return b;
}
#endif
#ifndef YY_NO_PUSH_STATE
#ifdef YY_USE_PROTOS
static void vsl_push_state( int new_state )
#else
static void vsl_push_state( new_state )
int new_state;
#endif
{
if ( vsl_start_stack_ptr >= vsl_start_stack_depth )
{
vsl_size_t new_size;
vsl_start_stack_depth += YY_START_STACK_INCR;
new_size = vsl_start_stack_depth * sizeof( int );
if ( ! vsl_start_stack )
vsl_start_stack = (int *) vsl_flex_alloc( new_size );
else
vsl_start_stack = (int *) vsl_flex_realloc(
(void *) vsl_start_stack, new_size );
if ( ! vsl_start_stack )
YY_FATAL_ERROR(
"out of memory expanding start-condition stack" );
}
vsl_start_stack[vsl_start_stack_ptr++] = YY_START;
BEGIN(new_state);
}
#endif
#ifndef YY_NO_POP_STATE
static void vsl_pop_state()
{
if ( --vsl_start_stack_ptr < 0 )
YY_FATAL_ERROR( "start-condition stack underflow" );
BEGIN(vsl_start_stack[vsl_start_stack_ptr]);
}
#endif
#ifndef YY_NO_TOP_STATE
static int vsl_top_state()
{
return vsl_start_stack[vsl_start_stack_ptr - 1];
}
#endif
#ifndef YY_EXIT_FAILURE
#define YY_EXIT_FAILURE 2
#endif
#ifdef YY_USE_PROTOS
static void vsl_fatal_error( vslconst char msg[] )
#else
static void vsl_fatal_error( msg )
char msg[];
#endif
{
(void) fprintf( stderr, "%s\n", msg );
exit( YY_EXIT_FAILURE );
}
/* Redefine vslless() so it works in section 3 code. */
#undef vslless
#define vslless(n) \
do \
{ \
/* Undo effects of setting up vsltext. */ \
vsltext[vslleng] = vsl_hold_char; \
vsl_c_buf_p = vsltext + n; \
vsl_hold_char = *vsl_c_buf_p; \
*vsl_c_buf_p = '\0'; \
vslleng = n; \
} \
while ( 0 )
/* Internal utility routines. */
#ifndef vsltext_ptr
#ifdef YY_USE_PROTOS
static void vsl_flex_strncpy( char *s1, vslconst char *s2, int n )
#else
static void vsl_flex_strncpy( s1, s2, n )
char *s1;
vslconst char *s2;
int n;
#endif
{
register int i;
for ( i = 0; i < n; ++i )
s1[i] = s2[i];
}
#endif
#ifdef YY_NEED_STRLEN
#ifdef YY_USE_PROTOS
static int vsl_flex_strlen( vslconst char *s )
#else
static int vsl_flex_strlen( s )
vslconst char *s;
#endif
{
register int n;
for ( n = 0; s[n]; ++n )
;
return n;
}
#endif
#ifdef YY_USE_PROTOS
static void *vsl_flex_alloc( vsl_size_t size )
#else
static void *vsl_flex_alloc( size )
vsl_size_t size;
#endif
{
return (void *) malloc( size );
}
#ifdef YY_USE_PROTOS
static void *vsl_flex_realloc( void *ptr, vsl_size_t size )
#else
static void *vsl_flex_realloc( ptr, size )
void *ptr;
vsl_size_t size;
#endif
{
/* The cast to (char *) in the following accommodates both
* implementations that use char* generic pointers, and those
* that use void* generic pointers. It works with the latter
* because both ANSI C and C++ allow castless assignment from
* any pointer type to void*, and deal with argument conversions
* as though doing an assignment.
*/
return (void *) realloc( (char *) ptr, size );
}
#ifdef YY_USE_PROTOS
static void vsl_flex_free( void *ptr )
#else
static void vsl_flex_free( ptr )
void *ptr;
#endif
{
free( ptr );
}
#if YY_MAIN
int main()
{
vsllex();
return 0;
}
#endif
#line 257 "./vsl-lex.L"
class vslNameSet {
private:
string _name;
vslNameSet *_next;
public:
vslNameSet(const char *name)
: _name(name), _next(0)
{}
~vslNameSet() { reset(); }
void reset();
int add(const char *name);
private:
vslNameSet(const vslNameSet&)
: _name(), _next(0)
{
assert(0);
}
vslNameSet& operator = (const vslNameSet&)
{
assert(0); return *this;
}
} vslnameSet("xyzzy");
// Delete name set
void vslNameSet::reset()
{
if (_next)
delete _next;
_next = 0;
}
// Add to name set; if already there, return -1
int vslNameSet::add(const char *name)
{
if (strcmp(_name.chars(), name) == 0)
return -1;
if (_next)
return _next->add(name);
_next = new vslNameSet(name);
return 0;
}
// Clear name set
static void switchreset()
{
vslnameSet.reset();
}
// Return to original file
static int switchdown()
{
if (topstack <= 0)
return -1;
if (vslstream != 0)
{
if (VSEFlags::verbose)
{
cout << ")";
cout.flush();
}
delete vslstream;
}
topstack--;
vslstream = streamstack[topstack];
vslfilename = namestack[topstack];
vsllinenumber = linestack[topstack];
#ifdef FLEX_SCANNER
if (YY_CURRENT_BUFFER != 0)
vsl_delete_buffer(YY_CURRENT_BUFFER);
vsl_switch_to_buffer(bufstack[topstack]);
#endif
return 0;
}
#ifndef VSL_INCLUDE_PATH
#define VSL_INCLUDE_PATH "/usr/local/lib/vsl-include"
#endif
// Search file in directories -I, $VSL_INCLUDE suchen
// as well as in ".", if THISDIR == true
// If not found, return FILENAME
static char *searchpath(char *filename, bool thisDir)
{
char includeList[BUFSIZ];
// If "-I" is given, use this path
char *s = VSEFlags::include_search_path;
if (s == NULL || s[0] == '\0')
{
// Otherwise: Use environment or default path
s = getenv("VSL_INCLUDE");
if (s == NULL)
{
static string path =
string(VSL_INCLUDE_PATH) +
":/usr/local/vse/vsl-include"
":/usr/vse/vsl-include"
":/usr/local/lib/vse/vsl-include"
":/usr/lib/vse/vsl-include"
":/usr/local/lib/vsl-include"
":/usr/lib/vsl-include";
s = path;
}
}
// If this dir is supposed to be searched, prepend ".:"
if (thisDir)
strcpy(includeList, ".:");
else
strcpy(includeList, "");
strncat(includeList, s, BUFSIZ - 2);
// Check dirs; if file can be opened, return full path
for (char *p = strtok(includeList, ":"); p != NULL; p = strtok(NULL, ":"))
{
static char path[BUFSIZ];
strcpy(path, p);
strcat(path, "/");
strcat(path, filename);
FILE *fp = fopen(path, "r");
if (fp != NULL && fclose(fp) != EOF)
{
// Remove "./" prefix
if (path[0] == '.' && path[1] == '/')
return path + 2;
else
return path;
}
}
return filename;
}
// Switch to file FILENAME
static int switchup(char *filename, bool thisdir)
{
if (string(filename) != "")
{
// Search file
filename = searchpath(filename, thisdir);
// Add to name set; if we already have read it, don't care
if (vslnameSet.add(filename))
return 0;
}
if (topstack >= max_include_nesting)
{
VSLLib::parse_error("too many #include's");
return -1;
}
#ifdef FLEX_SCANNER
if (YY_CURRENT_BUFFER == 0)
{
YY_CURRENT_BUFFER = vsl_new_buffer(stdin, YY_BUF_SIZE);
vsl_load_buffer_state();
}
bufstack[topstack] = YY_CURRENT_BUFFER;
#endif
streamstack[topstack] = vslstream;
namestack[topstack] = vslfilename;
linestack[topstack] = vsllinenumber;
topstack++;
vsllinenumber = 1;
vslfilename = filename;
#ifdef FLEX_SCANNER
vsl_switch_to_buffer(vsl_new_buffer(stdin, YY_BUF_SIZE));
#endif
if (string(filename) == "")
{
vslstream = &cin;
vslfilename = "standard input";
}
else
{
#if BAD_ISTREAM
vslstream = 0;
FILE *fp = fopen(filename, "r");
if (fp == NULL || fclose(fp) == EOF)
{
#else
vslstream = new ifstream(filename, ios::in);
if (!vslstream->readable())
{
#endif
switchdown();
VSLLib::parse_error(string(filename) + ": " + strerror(errno));
return -1;
}
#if BAD_ISTREAM
// vslstream can now be opened
vslstream = new ifstream(filename, ios::in);
#endif
}
if (VSEFlags::verbose)
{
cout << "(" << vslfilename;
cout.flush();
}
#ifdef FLEX_SCANNER
// Avoid warnings about unused vslunput() function
if (false)
vslunput(0, 0); // Never called
#endif
return 0;
}